This 100-300mm F4.0-5.6 classic enhanced lens for G Series Cameras has been updated for the outdoors with a splash proof and dustproof design, now featuring Power O.I.S. optical image stabilization compatibility with 5-Axis Dual I.S. 2.0 for unprecedented hand-held stability. Compatible with mirrorless Micro Four Thirds system cameras; splash proof and dustproof design.